It's amazing those movies came out as well as they did.
>Bryan Singer didn't want anyone reading the comics during production of the first movie and had them banned from set, but the entire cast had them smuggled in and passed them around as contraband behind Singer's back.
>Beast, Pyro and Blob got cut from the original script because they were too expensive to adapt.
>Michael Jackson heavily pursue the role of Professor X and even filmed a short movie where he played an old, bald white man through makeup and prosthetics to prove that he could pull it off.
>Russell Crowe turned down Wolverine because he had already played a wolf-like character in Gladiator.
>Patrick Stewart turned down Xavier at first because he didn't want to sit for the entire movie.
>Dougray Scott and James Caviezel were originally cast as Wolverine and Cyclops, but both had to drop out at the last minute due to scheduling conflicts.
>Hugh Jackman thought Wolverine was a wolf and tried to act like one for the first few days of shooting. He was almost fired for it.
>The scene where Cyclops smiles at a little boy in the train station was ad-libbed because the kid they got for the scene was a Cyclops fan and couldn't stop smiling.
>Tyler Mane was blinded for almost two days due to wearing his Sabretooth contacts for too long.
>Rebecca Romijn was drunk when she filmed the Wolverine/Mystique fight and barfed blue vomit all over Jackman.
>Romijn actually knocked Bruce Davison unconscious with a kick to the face.
>Jackman is terrified for real in the train scene, since nobody told him the set would literally fall apart around him.
>Everyone just naturally assumed Patrick Stewart and Ian McKellen knew how to play chess and only discovered they needed an instructor when it came the day to shoot their scenes playing.
>They auctioned off the custom-made Xavier wheelchair from the first movie and had to rent it out for Patrick Stewart to use in the sequel.